Effects of the Application Methods and Concentrations of NaCl on Growth and Antioxidant Activity in Sunflower Sprouts
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Abstract
Salt stress can improve health-promoting phytochemicals in plants. The objective of this study is to determine the application methods and concentrations of NaCl solution on growth and antioxidant activity in sunflower sprout. Comparison of methods of spraying and concentrations of NaCl solution were investigated. The results showed that spraying NaCl with 20 mL and 50 mL daily at 5, 50 and 100 mM enhanced the antioxidant activity in the sprout without adverse effect on sunflower sprout growth. The comparison of germinated-seed soaking time and the concentration of NaCl solution were also determined. The results showed that germinated-seed soaking in 50 and 100 mM NaCl for 5 and 50 mM for 10 min tended to increase the sprout fresh weight. But soaking in NaCl significantly reduced the antioxidant activity in the sprout. This study indicated that spraying method had potential to increase antioxidant activity and soaking method can improve yield of sunflower sprout. The concentration of NaCl up to 100 mM could be a proper level.
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References
Bohnert, H.J., and R.G. Jensen. 1996. Strategies for engineering water-stress tolerance in plants. Trends Biotechnol. 14: 89–97.
Brand-Williams, W., M.E. Cuvelier, and C. Berset. 1995. Use of free radical method to evaluate antioxidant activity. LWT Food Sci. Technol. 28: 25–30.
Guo, L., R. Yang, Z. Wang, Q. Guo, and Z. Gu. 2014. Effect of NaCl stress on healthpromoting compounds and antioxidant activity in the sprouts of three broccoli cultivars. Int. J. Food Sci. Nutr. 65: 476–481.
Lim, J-H., K-J. Park, B-K. Kim, J-W. Jeong, and H-J. Kim. 2012. Effect of salinity stress on phenolic compounds and carotenoids in buckwheat (Fagopyrum esculentum M.) sprout. Food Chem. 135: 1065–1070.
Pajak, P., R. Socha, D. Galkowska, J. Roznowski, and T. Fortuna. 2014. Phenolic profile and antioxidant activity in selected seeds and sprouts. Food Chem. 143: 300–306.
Ramakrishna, A., and G.A. Ravishankar. 2011. Influence of abiotic stress signals on secondary metabolites in plants. Plant Signal. Behav. 6: 1720–1731.
Rasool, S., A. Hameed, M.M. Azooz, T.O. Siddiqi, and P. Ahmad. 2013. Salt stress: causes, types and response of plants. P. 1–24. In: Ahmad, P., M.M. Azooz, and M.N.V. Prasad. Ecophysiology and Response of Plant under Salt Stress. Springer, New York.
Rouphael, Y., S.A. Petropoulos, M. Cardarelli, and G. Colla. 2018. Salinity as eustressor for enhancing quality of vegetables. Sci. Hortic. 234: 361–369.
Soussi, M., A. Ocana, and C. Lluch. 1998. Effect of salt stress on growth, photosynthesis and nitrogen fixation in chick-pea (Cicer arietinum L.). J. Exp. Bot. 325: 1329–1337.
Yuan, G., X. Wang, R. Guo, and Q. Wang. 2010. Effect of salt stress on phenolic compounds, glucosinolates, myrosinase and antioxidant activity in radish sprouts. Food Chem. 121: 1014–1019.
Zhu, J.K., P.M. Hasegawa, R.A. Bressan, and H.J. Bohnert. 1997. Molecular aspects of osmotic stress in plants. Crit. Rev. Plant Sci. 16: 253–277.
